awesome project you started there !
I wanted to add that reducing the wire speed doesn't increase penetration. Increasing wire speed, or lowering amperage ( ''heat'' ) does.
Check the Miller's website, they've got a nice calculator that tells you what setting you should use. From the pic, it look like it's 1/8 steel you are welding ? I'd try 165 Amps, and about 330 inch of wire per minute (for .035'', solidcore wire) if I were you
(
http://www.millerwelds.com/resources/calculators/mig_solid_amperage_calculator.php)
Oh, and, if you ever intend to ride that bike, have your welds X-ray'ed (or at least checked by a certified welder/inspector) before you go. I'd rather not see that someone was killed because the bike he was riding broke in half
Keep us updated !
